What is the cheapest airline that flies from Colorado to Sofia?

Turkish Airlines is the most popular carrier operating from Colorado to Sofia

What airlines fly to Sofia?

Turkish Airlines, United Airlines and Lufthansa are the top three most popular airlines that fly to Sofia from Colorado according to our data. Turkish Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 3 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Sofia?

Flight times vary depending on what airport in Colorado you fly out of and what airport in Sofia you fly into. For example, flying from Denver to Sofia takes 14h 20m on average. On the other hand, flying from Grand Junction to Sofia takes 24h 27m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Colorado to Sofia Airport?

Prices for flights from Colorado to Sofia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Colorado to Sofia Airport?

As of March 2026, there are 3 operators available to choose from for flights from Colorado to Sofia Airport.

How old do you have to be to fly from Colorado to Sofia Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Sofia Airport.

What documentation or ID do you need to fly to Sofia Airport?

The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$350 Cheap Flights from Colorado to Sofia in 2026

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Find the cheapest flights from Colorado to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:25 pm - 8:15 pm

DEN

SOF

14h 50m

1 stop

9:35 am - 6:25 pm

SOF

DEN

17h 50m

1 stop

$598Turkish Airlines

Thu, Apr 16 - Sun, May 3

8:25 pm - 8:15 pm

DEN

SOF

14h 50m

1 stop

9:35 am - 6:25 pm

SOF

DEN

17h 50m

1 stop

$600Turkish Airlines

Sun, Apr 19 - Sat, May 30

8:25 pm - 8:45 am

DEN

SOF

27h 20m

1 stop

9:05 pm - 6:25 pm

SOF

DEN

30h 20m

1 stop

$606Turkish Airlines

Tue, Apr 14 - Wed, Apr 22

8:25 pm - 3:00 pm

DEN

SOF

33h 35m

1 stop

9:35 am - 6:25 pm

SOF

DEN

17h 50m

1 stop

$609Turkish Airlines

Sun, Apr 19 - Sun, Apr 26

8:25 pm - 8:15 pm

DEN

SOF

14h 50m

1 stop

9:35 am - 6:25 pm

SOF

DEN

17h 50m

1 stop

$637Turkish Airlines

Sat, Apr 18 - Sat, May 30

8:25 pm - 8:15 pm

DEN

SOF

14h 50m

1 stop

3:50 pm - 6:25 pm

SOF

DEN

35h 35m

1 stop

$653Turkish Airlines

Sat, Apr 18 - Fri, May 29

1:33 pm - 6:40 pm

GJT

SOF

20h 07m

2 stops

6:10 am - 8:36 pm

SOF

GJT

23h 26m

2 stops

$691Lufthansa

Tue, Aug 4 - Tue, Aug 25

1:33 pm - 11:00 pm

GJT

SOF

24h 27m

2 stops

11:35 am - 12:28 pm

SOF

GJT

33h 53m

3 stops

$770Multiple Airlines

Tue, Aug 4 - Tue, Aug 25

5:30 am - 11:00 am

GJT

SOF

20h 30m

3 stops

6:10 am - 8:36 pm

SOF

GJT

23h 26m

2 stops

$782Multiple Airlines

Tue, Aug 4 - Tue, Aug 25

5:30 am - 11:00 am

GJT

SOF

20h 30m

3 stops

11:35 am - 12:28 pm

SOF

GJT

33h 53m

3 stops

$786Air Canada

Tue, Aug 4 - Tue, Aug 25

Lufthansa flights from Colorado to Sofia

Our best Lufthansa deals on Colorado to Sofia flight tickets

Lufthansa

Aug 4

GJT1:33 pmGrand Junction Regnl

20h 07m

2 stops

SOF6:40 pmSofia

Aug 25

SOF6:10 amSofia

23h 26m

2 stops

GJT8:36 pmGrand Junction Regnl

$691

Lufthansa

Aug 19

DEN4:15 pmDenver Intl

17h 25m

1 stop

SOF6:40 pmSofia

Sep 2

SOF1:50 pmSofia

18h 44m

2 stops

DEN11:34 pmDenver Intl

$771

Lufthansa

May 4

DEN4:05 pmDenver Intl

17h 35m

1 stop

SOF6:40 pmSofia

Jun 3

SOF6:20 amSofia

18h 20m

1 stop

DEN3:40 pmDenver Intl

$776

Turkish Airlines flights from Colorado to Sofia

Our best Turkish Airlines deals on Colorado to Sofia flight tickets

Turkish Airlines

Apr 16

DEN8:25 pmDenver Intl

14h 50m

1 stop

SOF8:15 pmSofia

May 3

SOF9:35 amSofia

17h 50m

1 stop

DEN6:25 pmDenver Intl

$598

Turkish Airlines

Apr 19

DEN8:25 pmDenver Intl

14h 50m

1 stop

SOF8:15 pmSofia

May 30

SOF9:35 amSofia

17h 50m

1 stop

DEN6:25 pmDenver Intl

$600

Turkish Airlines

Apr 14

DEN8:25 pmDenver Intl

27h 20m

1 stop

SOF8:45 amSofia

Apr 22

SOF9:05 pmSofia

30h 20m

1 stop

DEN6:25 pmDenver Intl

$606

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 4/16

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Sun 5/3

9:35 am-6:25 pm

1 stop17h 50m

$598

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 4/19

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Sat 5/30

9:35 am-6:25 pm

1 stop17h 50m

$600

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/14

8:25 pm-8:45 am

1 stop27h 20m

Sofia

Wed 4/22

9:05 pm-6:25 pm

1 stop30h 20m

$606

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 4/19

8:25 pm-3:00 pm

1 stop33h 35m

Sofia

Sun 4/26

9:35 am-6:25 pm

1 stop17h 50m

$609

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 4/18

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Sat 5/30

9:35 am-6:25 pm

1 stop17h 50m

$637

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 4/18

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Fri 5/29

3:50 pm-6:25 pm

1 stop35h 35m

$653

Grand JunctionSofia

GJT - SOF

GJTSOF

Grand Junction Regnl

Tue 8/4

1:33 pm-6:40 pm

2 stops20h 07m

Sofia

Tue 8/25

6:10 am-8:36 pm

2 stops23h 26m

$691

Grand JunctionSofia

GJT - SOF

GJTSOF

Grand Junction Regnl

Tue 8/4

1:33 pm-11:00 pm

2 stops24h 27m

Sofia

Tue 8/25

11:35 am-12:28 pm

3 stops33h 53m

$770

Grand JunctionSofia

GJT - SOF

GJTSOF

Grand Junction Regnl

Tue 8/4

5:30 am-11:00 am

3 stops20h 30m

Sofia

Tue 8/25

6:10 am-8:36 pm

2 stops23h 26m

$782

Grand JunctionSofia

GJT - SOF

GJTSOF

Grand Junction Regnl

Tue 8/4

5:30 am-11:00 am

3 stops20h 30m

Sofia

Tue 8/25

11:35 am-12:28 pm

3 stops33h 53m

$786

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

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Other information

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Colorado is in November. Flight prices, which tend to average around $596, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from Colorado during March instead. Flights to Sofia in March, while not as cheap as those in November, still average around $627.

How far in advance should I book a flight to Sofia?

You are more likely to see cheaper flights to Sofia from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $772 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Colorado for as low as $642 on momondo.

Can stopping save me money on Colorado to Sofia flights?

You could potentially save up to 33% on your flight if you consider stops on a Colorado to Sofia flight.

Cheap Colorado to Sofia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Sofia

Fastest flight time	14h 20m
Direct flights	None

The fastest flight from Colorado to Sofia takes 14h 20m

There are no direct flights from Colorado to Sofia. There are no popular flight routes from Colorado to Sofia.

Search flight deals

When did momondo last update prices for flights from Colorado to Sofia Airport?
Prices for flights from Colorado to Sofia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Sofia Airport?
As of March 2026, there are 3 operators available to choose from for flights from Colorado to Sofia Airport.
How old do you have to be to fly from Colorado to Sofia Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Colorado to Sofia

Compare and see reviews for airlines that fly from Colorado to Sofia with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $568	Free Cancellation	Rating 7.4 4,281 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $577	Free Cancellation	Rating 6.8 7,869 reviews	Search Lufthansa flights
United Airlines	PriceFrom $656	Free Cancellation	Rating 7.4 9,479 reviews	Search United Airlines flights

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Sofia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sofia from Colorado.

Can I find flights from Colorado to Sofia with flexible booking policies on momondo?

Flights from Colorado to Sofia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado to Sofia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Colorado to Sofia.

I’m not ready to book a flight from Colorado to Sofia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Sofia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sofia and let you know when they change.

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Cheap flights from Colorado to Sofia from $350

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Sofia departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Colorado to Sofia

What is the cheapest month to fly to Sofia?

How far in advance should I book a flight to Sofia?

Can stopping save me money on Colorado to Sofia flights?

What is the cheapest airline that flies from Colorado to Sofia?

What airlines fly to Sofia?

How long does it take to fly to Sofia?

Cheap Colorado to Sofia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Sofia

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Best airlines flying from Colorado to Sofia

Compare and see reviews for airlines that fly from Colorado to Sofia with momondo

Traveling to a place near Sofia?

Why use momondo?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

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Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.

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